During his playing years Palmroth was known as a defensive defenseman. He liked to play the body and was strong in front of his own goal. His biggest weakness was in his offensive contribution and his physical play often led to penalties. (EP 2014)

Trivia
- 2014-09-15 • Retired as a player at the age of only 25 citing lack of motivation to keep playing. Before opting to retire Palmroth had suffered from chronic fatigue syndrome.
- 2014-01-25 • Broke the record for most penalty minutes in one game in Finnish Liiga with 59 minutes